Directory Traversal with spring-cloud-config-server
100Vexday Risk Score
Patch now. It under exploitation confirmed by CISA and has a working public exploit.
ssvc Actcvss 7.5epss 96%
from disclosure to weapon1 days
Published on NVDJun 2
1st PoC+1d
metasploitJun 1
CISA KEV+661d
exploitation probability
96%top 1% of all CVEs
observed exploitation
yesCISA + VulnCheck
6 public exploit(s)
Action required by CISAfederal deadline: 2022-04-15
Apply updates per vendor instructions.
Versions
Affected
maven/org.springframework.cloud:spring-cloud-config-server >= 2.1.0, < 2.1.9; maven/org.springframework.cloud:spring-cloud-config-server >= 2.2.0, < 2.2.3
Fixed in
maven/org.springframework.cloud:spring-cloud-config-server 2.1.9; maven/org.springframework.cloud:spring-cloud-config-server 2.2.3
Researched and written with AI from the vendor advisory and public analysis, with the sources above. Always confirm the fixed version in the official advisory before acting.
Spring Cloud Config, versions 2.2.x prior to 2.2.3, versions 2.1.x prior to 2.1.9, and older unsupported versions allow applications to serve arbitrary configuration files through the spring-cloud-config-server module. A malicious user, or attacker, can send a request using a specially crafted URL that can lead to a directory traversal attack.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
Spring by VMware · Spring Cloud Configpublic PoCs found — 6
githubgithub.com/osamahamad/CVE-2020-5410-POC★ 30githubgithub.com/dead5nd/config-demo★ 0githubgithub.com/shoucheng3/spring-cloud__spring-cloud-config_CVE-2020-5410_2-1-8-RELEASE★ 0vulncheckvulncheck.com/xdb/788a7241c9c9unverifiedvulncheckvulncheck.com/xdb/e1abb7641447unverifiedvulncheckvulncheck.com/xdb/6eac00f6b406unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.